Finding the Fourth Proportional to 57,552, 86,367.15 and 20,616

Step by Step Solution

1. Step 1: Write the proportion equation
   57,552 : 86,367.15 = 20,616 : x
2. Step 2: Convert to fraction form
   57,552/86,367.15 = 20,616/x
3. Step 3: Cross multiply
   57,552x = 86,367.15 × 20,616
4. Step 4: Simplify right side
   57,552x = 1,780,545,164.40
5. Step 5: Solve for x
   x = 1,780,545,164.40/57,552
6. Step 6: Final answer
   x = 30,938.02